package demo1;


import demo3.AdminUser;
import demo3.NormolUser;
import demo3.User;

import java.util.Scanner;

public class Main {
    public static User login() {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入用户名：");
        String username = sc.nextLine();
        System.out.println("请输入你的身份：1.管理员 2.普通用户");
        int choice = sc.nextInt();

        if (choice == 1) {
            return new AdminUser(username);

        } else {
            return new NormolUser(username);
        }
    }

    public static void main(String[] args) {
        BookList bookList = new BookList();
        User user = login();
        while (true) {
            int choice=user.menu();
            user.doIOperation(choice,bookList);
        }
        }
    }
